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5
7
1
9
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7
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2
8
6
6
3
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5
7
3
8
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5
6
5
6
9
5
4
6
7
3
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2
7
4
3
9
1
9
1
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5
4
4
6
8
2
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5
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7
4
6
7
9
2
3
4
1
9
8
6
5
7
3
8
5
4
6
1
5
6
9
7
3
5
6
2
2
7
9
1
4
6
4
3
2
5
8
9
1
4
2
1
2
3
4
5
6
7
8
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